Weevils - Entomological Society of Canada

emerge in late May, June, and part of July. The species has, therefore, a
2-year life cycle (Sanborne 1981). Sanborne (1981) has described and
illustrated the larva and pupa.
Family Attelabidae
This family contains only about 200 species worldwide, most of
which occur in the tropical regions. About 76 species in four genera
occur in North America, mostly in the southern areas. Three species in
three genera extend into Canada.
Members of the family are known as leaf-rolling weevils. The larvae
live in compact thimble-shaped rolls made of leaves. These rolls are
made by the female beetle and are often found hanging by a narrow strip
from the leaf from which they were made. The female lays a single egg in
each roll. The larva feeds on the inner part of the roll and, when mature,
enters the ground to pupate.
Description. Body stout, oval; usually glabrous. Head with
1 gular suture; pregular sutures absent. Rostrum short, stout, wider at
apex, not sexually dimorphic. Maxilla without lacinia; maxillary palpus
rigid; labrum not distinct. Antennae straight, moniliform; antennal
club distinct, 3-segmented. Legs with trochanter short, triangular;
femur attached to side. Abdomen with sternites 1-4 connate.
1.
2.
1.
Key to genera of Attelabidae in Canada
Bodyglabrous ... 2
Body pubescent . . ... Himotolabus tlekel (p. 176)
Dorsum entirely reddish orange. Femora of forelegs not toothed.
Submental area with 2 teeth in male and without teeth in female
.. Homoeolabus.Iekel (p. 178)
Dorsum black; elytrawith humeral area reddish. Femora offorelegs
toothed ventrally. Submental area with blunt tooth or swelling,
more prominent in female . . Attelabus Linnaeus (p' 180)
Cl6 des genres des Attelabidae du Canada
Corps glabre 2
Corps pubescent . . . . Himatolabus Jekel (p. 176)
t75